DE10242760B4 - Vehicle seat with massage function and contour adjustment - Google Patents

Abstract

vehicle seat (1) with a seat cushion (2) and with a seat back (3), which each with a plurality of pressurizable elements (4) are provided to influence the seat contour, with a control (5) for targeted pressurization of the pressurizable Elements (4), wherein the controller (5) is adapted to achieve different massage effects, and where the pressurizable Elements (4) in proportion to the surface the seat contour are small, pillow-like elements that are essential to punctate change the seat contour each separately Lines (6) are controllable, characterized in that the pressurizable elements (4) between a padding (7) and a cover (8) of the vehicle seat (1) are arranged.

Description

The The invention relates to a vehicle seat of a motor vehicle, in particular a passenger or heavy goods vehicle, according to the preamble of the claim 1.

Such a vehicle seat is from the DE 195 45 168 A1 known. There, a vehicle seat is shown having a plurality of Druckbeaufschlagbahren elements for adjusting the seat contour.

Out the practice known vehicle seats of motor vehicles have at least a seat cushion and a seat back, which by padding elements and respective suspensions equipped with a predetermined seat contour are. The construction of such vehicle seats is conventionally from a respective spring suspension, with cushions and subsequently are covered with a corresponding seat cover. Through the padding and the attachment seams the seat cover is trying for the driver of the vehicle to provide such a seat contour, even with prolonged sitting preferably causes little signs of fatigue and as possible well adapted to the respective anatomy of the driver. For this It is known vehicle seats with one or a plurality of pneumatic To provide elements that have a control and by means of a pressure generator, an optimization of the adaptation allow the seat contour to a respective driver. A disadvantage of these relatively large-area pneumatic Elements is that the influencing possibilities of the seat contour also because of the relatively thick-walled respective cushions of the backrest and the seat cushion limited are.

Farther it is known in vehicle seats, especially in vehicle seats of lorries to provide pneumatic elements in the seat, the above a control device can be pressurized in this way, that various massage functions via the pneumatic elements are feasible. This may be similar to those made of beads Massage pads of vehicle seats a periodically changing seat contour such be generated that specifically fatigue due to long-term sitting in the vehicle seat prevented can be. The disadvantage here is that either the pneumatic elements produce only a small effect, since they are regularly with each other pneumatically and related pressure related and / or the massage effect is relatively weak, as with more or less large-scale pressure generation below the padding of vehicle seats and because of the in usually tightly strapped covers above this cushion pad an effective transmission from pressing on the body the driver is avoided.

The The present invention has the object, a vehicle seat with a contour setting and a massage feature to provide which constructively possible easy to implement and one in terms of the desired Seat contour possible effective and variable adjustment of the seat allows. This object is achieved by a vehicle seat with the features according to claim 1 solved. Advantageous developments and refinements of the invention are Subject of the dependent Claims.

Of the Vehicle seat according to the invention has a seat cushion and a seat back, each with a A plurality of pressurizable elements for influencing the Seat contour are provided, and a control for targeted pressurization the elements, whereby by means of the control different massage effects can be achieved. The vehicle seat according to the invention is characterized characterized in that the pressurizable elements in relation to area the seat contour are small, pillow-like elements, which respectively separately via lines can be controlled for essentially point-like change in the seat contour. hereby On the one hand, an effective massage function by means of the pressurizable Elements are realized, as a substantially punctiform pressure generation targeted changes the seat contour allows. Because the pressurizable elements are relatively small, pillow-like elements are, is the required volume and thus the response time is low. The massage function can be low additional Space requirements to be inserted in existing seats. The only punctiform pressure generation single or a combination of several pressurizable elements is surprisingly enough for one targeted change the seat contour and effective, that is, effective realization of massage functions. Although only a small volume The pressurizable elements can exist through the selective pressure increase inside the back and the seat of the vehicle due to the Lamination and / or upholstery and cover existing seat contour in the context of a targeted and effective change the seat contour allows become.

According to an advantageous embodiment of the invention, a desired, static seat contour can be adjusted by means of the pressurizable elements and the control of the vehicle seat. In this preset static seat contour, that is, a seat contour, which is defined by different pressurization of individual pressure elements, building, so advantageously a massage function, for example, by periodically changing or combined actuation of individual pressure elements or pressurizable elements of an entire region, such as, for example, a dorsal region, can be realized in a simple and effective manner, and the contour of the seat, which is specifically adapted to a driver, is then readily assumed again. Similarly, preset seating positions for a plurality of users, as occasionally realized in today's motor vehicles, so the vehicle seat can be adapted to different users of the vehicle specifically, that is according to the respective orthopedic and / or comfort-related conditions. The seat contour is according to the invention always retrievable or is automatically resumed after performing one or more massage actions. This is done in an advantageous manner by pressurizing the individual elements, each having only a small volume and therefore have short response times. The contour adjustment according to the invention with combined massage function is not very expansive and can be easily inserted between the individual elements of a vehicle seat, in particular the lower suspension, upholstery and the cover of the seat.

According to the advantageous embodiment of the invention, the pressurizable elements between a padding and a reference of the vehicle seat are arranged. The effectiveness of the substantially point-shaped pressure generation by the pressurizable elements can thus be further increased. By substantially point-shaped is meant in the present case a relative to the total area of the seat or the back of the vehicle seat relatively small area, in particular an area in the order of 5 to 10 cm ² , which can be actuated separately by a single pressurizable element. The number and arrangement of the respective elements is preferably distributed substantially over the entire surface of the seat contour, but may also be limited to individual specific areas.

To an advantageous embodiment of the invention are the pressurizable Elements on a plane Reinforcement fixed and below a covered by the reference of the seat Lamination of the vehicle seat arranged. This will be the assembly of the seat according to the invention relieved as the individual elements and their interconnections on a support surface in such a way are fixed that slipping or shifting during the Manufacturing the vehicle seat is avoided. The position of the respective printing elements is thus precisely defined, so that in particular also targeted massages of individual places in the area of the seat contour possible are.

To a further advantageous embodiment of the invention is the Shape of the pressurizable elements such that substantially point-shaped pressure areas can be generated within the seat contour. This avoids that by pressing a single element of the entire area of the seat cushion or the backrest equally is moved, or at least a large part of it. The punctiform pressurization has the particular advantage that the variability in the realization of a Presetting the seat contour is increased as well as the diversity the realizable massage functions through the seat. A form of druckbeaufschlagbaren elements, which substantially to a punctate Generation of pressure ranges is adapted, for example, a oval or circular Shape with lateral boundary seams, so when pressurizing the element substantially only an extension in the direction transverse to the surface of the seat contour takes place. An alternative example of a form of a pressure element, so that a punctiform pressure generation possible is the provision of bellows side sections, the through flat, opposing side walls get connected. Again, this is essentially going on the surface the seat and backrest surface Pressure generated without a relevant enlargement of the element to the Sides and thus a planar - not point-shaped - pressure generation he follows. Of course may alternatively be any other form of pressurizable element used as long as according to this aspect the invention is a substantially punctiform, that is in terms of the massage effect and the adjustment of desired seat contours targeted and effective pressurization is feasible.

To a further advantageous embodiment of the invention are the pressurizable elements over respective separate lines actuated, the lines in the area a carrier insert are arranged and fixed and brought together in the direction of the control bundled. By this arrangement, the assembly of the printing elements and their Lines in the manufacture of the vehicle seat simplified because a simple flat Reinforcement inserted in the layers of the seat and must be fixed. Furthermore are thereby the connecting lines of the control device or the pressure generating device as possible short, and the corresponding response times at the admission with pressure are correspondingly short. The fixation in the surface of a Carrier insert has Furthermore, the advantage that the required space in his height extension is reduced to a minimum.

According to another advantageous Ausgestal tion of the invention, the pressurizable elements pneumatically or electropneumatically be pressurized. Alternatively, a pressurization with a fluid may be provided, but the use of air is advantageous in terms of leakage problems.

To a further advantageous embodiment of the invention is the Control adapted to run a plurality of pre-set and individually adjustable Massage functions. The massage functions are combined over a periodic changing and / or single operation of realized respective printing elements in the areas of the seat contour. In particular, this is an implementation of known massage types, such as a reflexology massage with targeted massage individual areas of the body, realizable.

To a further advantageous embodiment of the invention is by means of the controller a plurality of preselected settings of a seat contour storable. This can be for different users of the vehicle, especially in trucks, one for the longer one Driving significant customization of the seat contour respectively get saved. Similar from preset seating positions (seat height, backrest slope, distance to the pedals, etc.) can also advantageously the respective Seat contour specifically fitted and stored in this adjustment also. The respective driver only has to be on his physique select optimized preset, and over the pressurizable elements will do this through the controller realized.

Further Advantages, advantageous embodiments and details of the invention The following description can be found in which the invention described in detail with reference to the embodiments illustrated in the drawing and explained is.

In show the drawing:

1 a schematic oblique top view of a first embodiment of a vehicle seat with pneumatic pressure elements according to the invention;

2 a schematic, sectional side view of a vehicle seat of the embodiment of 1 in the relaxed state of the printing elements;

3 the vehicle seat according to 2 with two pneumatic elements in the pressure state;

4 Embodiment variants with regard to the shape of the pneumatic elements according to the invention; and

5 Embodiment variants in detail of the shape and arrangement of the pressure lines for the pneumatic pressure elements according to the invention.

A first embodiment of a vehicle seat according to the invention with combined massage function and contour adjustment is schematically in oblique view 1 shown. The vehicle seat 1 is known to have a seat cushion 2 and a backrest 3 on which are hinged together. The vehicle seat 1 is below his reference 8th with a plurality of pressurizable elements or pneumatic elements 4 provided, via respective connecting lines 6 via a (not shown in the figure) pressure generating device with air pressure can be actuated. The pneumatic elements 4 preferably have a relatively small volume or surface area, so that a substantially punctiform pressure generation is possible. The shape of the pneumatic elements 4 is in the embodiment shown here is substantially oval or circular, so that small pressure pad or pressure pad in selected areas of the seat contour of the vehicle seat 1 be formed. Alternatively, the entire seat contour with the illustrated pneumatic elements 4 be provided. The pneumatic elements 4 are on a flat carrier insert 9 mounted and fixed so that their respective position within the surface of the seat contour is precisely defined. In addition, this assembly is facilitated. The actuation of the pneumatic elements 4 - one at a time, in combination or in chronological succession - over one in the seat back 3 arranged control 5 , By means of the controller is via respective separate connecting lines 6 every pneumatic element 4 generated by itself with the required air pressure. The realization of a massage function as well as the realization of specific seat contours can thus be realized with a relatively small volume, that is a relatively low pressure, in the medium or the compressed air in an advantageous manner and effectively.

In 2 is a schematic sectional side view of the vehicle seat 1 according to the embodiment of the invention 1 shown. From this, the structure and structure of the vehicle seat can be removed: The structure of each of the seat cushion 2 and the seat back 3 of the vehicle seat 1 consists in detail of a spring suspension 11 , a padding 7 , a lamination 10 and a cover covering these elements 8th , The insert of pneumatic elements according to the invention for a massage function and a contour adjustment of the seat is in this embodiment zwi upholstery 7 and the lamination 10 arranged. The relatively small; separate pneumatic elements 4 are so close to the surface of the seat contour of the vehicle seat 1 arranged that with low pressure and low volume, an adjustment of respective areas or points of the seat surfaces and back surfaces is possible. The control 5 is preferably in the area of the backrest 3 arranged so that no additional space is required.

In 3 is the embodiment of a vehicle seat according to the invention according to 2 shown in a similar view, here two selected pneumatic elements 4 are shown in the print state. The two pressurized pneumatic elements 4 each generate a local bulge at the predetermined location, essentially without the entire contour of the vehicle seat is changed. That is, after completion of the pressurization of the two elements 4 it is ensured that the original seat contour is reached again. Likewise, the in 3 illustrated situation, a preselected, specific seat contour of a particular driver, which in the lumbar region and the front seat area each having a survey, for optimal orthopedic or otherwise adaptation to the body of this driver.

4 represents embodiments with regard to the shape of the pneumatic or pressure elements 4 according to the invention. Allen in 4 in common that the shape is such that a substantially punctiform pressurization with the pneumatic elements is made possible. Besides, the elements are 4 in their volume relatively small and small in terms of their surface area in relation to the total surface area of the seat contour. Every pneumatic element 4 is with a respective line connection 6 provided over which the pressure is supplied and can be discharged again. The illustrated shape variants, which are given by way of example for the possibility of realization of a punctiform pressure generation are the following shapes: oval, egg-shaped form, laterally constricted accordion shape, two-chamber shape, elliptical shape with bump-like bulge and ellipse shape with a plurality of bump-like formations. Of course, other shapes and variations for the inventive device for massage and adjustment of the seat contour of a vehicle seat can be considered, as long as with them a substantially punctiform and little space-requiring pressure generation is possible.

In 5 are two embodiments of a design and arrangement of respective line connections 6 to the individual pneumatic pressure elements (not shown) 4 shown. The wires 6 The first variant shown are cylindrical pipes which are supported on a carrier 9 are arranged and fixed and are bundled together in the direction of the (not shown) control or pressure generating device. The fixation on the carrier insert 9 has the advantage of easier assembly, and attachment to the surface of the liner insert 9 has the advantage that in height a small space requirement is required. Alternatively, in the second, illustrated embodiment variant on the carrier insert 9 a plurality of channel-like, rectangular in cross-section lines 6 provided, which can be realized for example by welding a plurality of layers of films.

All in the description, the following claims and the drawings illustrated features can be essential to the invention both individually and in any combination.

Claims (8)

Vehicle seat ( 1 ) with a seat cushion ( 2 ) and with a seat back ( 3 ), each with a plurality of pressurizable elements ( 4 ) are provided for influencing the seat contour, with a control ( 5 ) for targeted pressurization of the pressurizable elements ( 4 ), whereby the controller ( 5 ) is adapted to achieve different massage effects, and wherein the pressurizable elements ( 4 ) are in relation to the surface of the seat contour small, pillow-like elements which are for substantially point-like change of the seat contour in each case separately via lines ( 6 ) are controllable, characterized in that the pressurizable elements ( 4 ) between a padding ( 7 ) and a reference ( 8th ) of the vehicle seat ( 1 ) are arranged. Vehicle seat ( 1 ) according to claim 1, characterized in that by means of the pressurizable elements ( 4 ) and the controller ( 5 ) A desired, static seat contour is adjustable. Vehicle seat ( 1 ) according to claim 1 or 2, characterized in that the pressurizable elements ( 4 ) on a flat carrier insert ( 9 ) below one by the reference ( 8th ) of the vehicle seat ( 1 ) covered lamination ( 10 ), arranged and fixed. Vehicle seat ( 1 ) according to one of the preceding claims, characterized in that the shape of the pressurizable elements ( 4 ) is such that substantially point-shaped pressure ranges can be generated within the seat contour. Vehicle seat ( 1 ) according to one of the preceding claims, characterized in that the pressurizable elements ( 4 ) via respective separate lines ( 6 ) are operable, the lines ( 6 ) in the surface of a carrier insert ( 9 ) and bundled in the direction of the control ( 5 ) are brought together. Vehicle seat ( 1 ) according to one of the preceding claims, characterized in that the elements ( 4 ) are pressurized pneumatically or electropneumatically. Vehicle seat ( 1 ) according to one of the preceding claims, characterized in that the controller ( 5 ) is adapted to perform a variety of preset and individually adjustable massage functions. Vehicle seat ( 1 ) according to one of the preceding claims, characterized in that by means of the control ( 5 ) a plurality of preselected settings of a seat contour can be stored.